Machine for forming sheet-glass.



.N9..76o,667. "'P'ATENTEDMAYZA,19,04.

E. A. B. WALSH.

MACHINE EOE EOEMING SHEET GLASE.

v APPLICATION FILED FEB. 8. 1904." N0 MODEL.

UNITED s Patented May 24, 1904.'l

PATENT," OFFIcE.

ROBERT A". B. WALSH, or ST. LOUIS, MISSOURI, ASSIGNOR To lIiIISS'ISSIr'rI GLASS fooiurfnvr,- or STQLOUIS, MISSOURI, A CORPORATION or MIS-- SOURI.. y

' l mAoHlNE Fon FORMING. SHEET-GLASS.

SPECIFICATION formingA part of Letters Patent No. '7eo,`e67, dated May 24, 1904.

Applicationled February 8, 1904.

To a/Z whom/t may concern.: y Be it known that L ROBERT A. B. WALSH, a citizen of the United States, residing at St. l Louis, Missouri, have invented a certain new and useful Improvement inl Machines for 1 Forming Sheet-Glass, of which the following is a full, clear, and exact description, such as will yenable others skilled in the art 'to which it appertains tol make and use the same, reference being had to the accompanying drawings, forming part of this specification, in which* Figure l is avertical longitudinal sectional View through a bed or base of avmachine constructed in accordance with my invention on the line 1,1, of Fig. 2, the feed mechanism and presser-roller being illustratedk in side eleva'- tion. Fig. 2 is a top plan View of the feeding mechanism and presser-roller and the bed or base,r and Fig. 3 vis a y.cross-sectional view on the line 3 3 of Figfllooking in the direction indicated by the arrows. v

This invention relates to machines for forming s heetl'glass;`fvand one of the primary objects thereof is to provide means whereby the sheet will be prevented` from` buckling or ridging in the body portion thereof.

Anotherobject .is to provide means wherebythe gl ass will be initially fed upon the bed in abnormal quantities', so as to provide 1an anchor for the plate proper, which anchor may be subsequently severed from the finished sheet. l

Another object of the inventionv is to pro-A vide means whereby the predetermined quan-` tity of glass mayA be fed upon the table kor bed.

Another object of the invention is to provide a yielding presser-roller.

Other objects and-advantages of the inven-v tion, as well as the novel details ofthe construction, will be specifically described hereinafter, it being understood that changes in form, proportion, and minor details of construction may be resorted to without departing from the spirit or sacrificing any of the advantages of this invention."

Referring to the drawings, the reference-nu- Ineral l designates a bed or base upon which the f sheet-glass is to be formed. The feed mech- Serial No. 192,507. (No model.)

anism and theibase, table, or bed are relatively movable-that is to say, either has a reciprocal movement vwith relation to the other; but

Ain the present instance I have illustrated the feed mechanism as being movable, while the base isl stationary. The frame 2 can be-of any form suitable for the purposefand it iS illustrated as being supported and guided by the rollers 2,- movable on the trangs of the base. In this frame are journaledrollers 3 and 4. One of the rollers (designated by the `numeral 4). isin a iiXed bearing in the frame,

while the other roller is in sliding bearings (designated by the numeral 5) slidable in slots '6 in the frame '2, which bearings can be adjusted by veither of the adjusting-screws 7 or 7 a, whereby the relative distancebetween the two rollers 3 and A can be regulated to govern the amout of glass fed therebetween. Carried by the vertical arm 8 of the frame 2 are sliding bearings 9, movable in theguides illustrated as slots 10` and resiliently secured by means of the' Springs l1, interposed between the ends of the slots and the bearings y 9. v These bearings 9 carry the presser-.roller 12, which evenly distributes the glass over the surface of the bed or base to form the platevor sheet. a

As commonly practiced the Sheets of glass 'are formed upon. beds, and the thickness vthereof is governed b5 thc depth or heights yof longitudinallydisposed upstanding ribs,

which in the trade are termed trangs 'Y l'and 14 designate the trangs carried on the base and which are of varyingdepths, one relatively deep portion of each trang being disposednear the end of the base, so that the distance between the top edge of the relatively deep portion of each trang and the upper sur- Lface of the bed will be greater'than thefdisthat the presser-roller will be rotated as it passes over the bed, I have provided approximately parallel racks 15 and 16, which are carried by the bed and the teeth of which mesh with the teeth of the gear-wheels 17 at the respective ends of the roller 12. These racks are also provided with varying depths to conform to the variations in the trangs heretofore described. When the machine is started, one end of the bed is adjacent to the feed-roller, or at least the feed-roller is superimposed above the edge of the trang, which governs the relative thickness of the glass sheet. The regulating devices 7 and 7 will be controlled to move the rollers 3 an abnormal distance apart from the roller 4 to permit an abnormal quantity of the glass from the source of supply 18 to pass between the rollers and onto the base 1, so that a relatively thick portion will be distributed, as at 19. As the presser-roll 12 reaches the end of the relatively deep portion of the trangs the supply of glass will be restricted, so that only a sufficient quantity will be fed to permit the roller 12 to evenly distribute a layer of glass of uniform thickness upon the base. The relatively thick portion of the glass, as at 19, will constitute the anchor, so that any liability of the portion being formed into the sheet being buckled or otherwise deteriorating will be materially lessened, if not wholly prevented. Inasmueh as the distributing-roller is yieldingly supported in the frame 2, the even distribution ofthe glass over the surface of the bed will be easily accomplished, and it will be apparent that but little practice will be required for the operator to be able to regulate the governing devices 7 and 7 L so that the proper amount of glass will be distributed between the rollers 3 and 4 so as to exactly iill the space between the surface of the bed and the top edge of the trangs 13 and 14. Any suitable mechanism can be used or any means employed for moving the frame and the parts carried thereby and the base relative to each other.

Having thus described the invention, what I claim as new, and desire to secure by Letters Patent. is-

1. A machine for forming sheet-glass, having a trang of varying depths; substantially as described.

2. A machine for forming sheet-glass, having a bed provided with a trang of varying depths, the relatively deep portion of the trang being at one end of the bed; substantially as described.

3. A machine for forming glass sheets,hav ing a bed and means for distributing the glass upon the bed in an initially relatively thick state, and in a subsequently relatively thin state; substantially as described.

4. In a machine for forming sheet-glass, a bed having an anchor-receiving portion, and a portion for receiving the glass in quantities of equal thickness; substantially as described.

5. In a machine for forming sheet-glass, the combination with a bed, of trangs on the bed of varying depths, and a feed mechanism having a reciprocating roller cooperating with said trangs; substantially as described.

6. In a machine for forming sheet-glass, the combination with a bed, of trangs on the bed of varying depths, and a feed mechanism having a resiliently-supported roller cor'perating with said trangs; substantially as described.

7. In a machine for forming sheet-glass, the combination with a bed, of trangs on the bed of varying depths, and a feed mechanism having a yielding roller cooperating with said trangs; substantially as described.

8. In a machine for forming sheet-glass, the combination with a bed, of trangs on the bed of varyingdepths, and a feed mechanism having a roller coperating with said trangs, and means on the bed for positively imparting` a rotating motion to said roller; substantially as described.

9. In amachine for forming sheet-glass, the combination with a bed, of trangs on the bed of varying depths, a roller coi'iperating with said trangs, means on the bed for positively imparting a rotating motion to said roller, teeth carried by the roller, and teeth on the bed for imparting a rotating movement to the roller; substantially as described.

10. In a machine for forming sheet-glass, the combination with a base having trangs of varying depths, feed-rollers having movement relative to each other to feed a relatively large quantity of glass between the relatively deep portions of the trangs and a relatively small. r portion of glass between the relatively `shallow portions of the trangs; substantially as described.

In testimony whereof I hereunto aiiix my signature, in the presence of two witnesses, this 5th day of February, 1904.

ROBERT A. B. W ALSl'l.

Witnesses:

B. F. FUNK, GEORGE BAKnwnLL.

TOO

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